Automatic fireproof flue-stopper



(No Model.)

R; W. DRINKER. AUTOMATIC FIRBPROOF FLUB STOPPER.

No. 577,013. Patentd Feb. 16, 1897; l

' @fm/v, ,www @www UNITED STATES PATENT OFFICE.

ROBERT IV. DRINKER, OF KILBOURN, WISCONSIN.

AUTOMATIC FIREPROOF FLUE-STOPPER.

SPECIFICATION forming partof Letters Patent No. 577,013, dated February16, 1897.

Application filed June 26,1896. Serial No. 596,919. (No model.)

T0 all '1L-imm it 77Min/ concern:

Be it known that I, ROBERT W. DRINKER, a citizen of the United States,residing at Kilbourn, in the county of Columbia and State of IVisconsin,have invented certain new and useful Improvements in Automatic FireproofElue-Stoppers; and I hereby declare the following to be a full, clear,and exact description of my invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to automatic reproof flue-protectors for closingpipe-holes in chimneys when the pipes are removed and to guard againstfire, smoke, and soot from such flueholes.

My device is so constructed as to accommodate automatically said holesof different sizes, having an inner and outer guard or disk forming anair-chamber between, so that if a chimney-flue were to take tire fromthe soot and burn out, as chimneys often do, no fire or heat or smokecould escape into the room through the pipe-holes when closed with mydevice.

I attain the objects of my invention by means of the improvedconstruction and arrangement of the several parts, which are fullydescribed, and pointed out in the claim, reference being had to theaccompanying drawings, which form a part of the specification, in whichsimilar figures of reference indicate corresponding parts in all theviews.

Figure I is a perspective view of my invention, showing also a sectionalelevation of a chimney and an aperture or pipe-hole therein to beclosed. Fig. II is a side elevation of same. Fig. III is a plan view lofsame.

1 lis a section of a chimney, and 2 is an aperture or pipe-hole in sideof chimney with pipe removed.

3 3 is the outer guard or disk, which is composed of any suitablematerial, as tin, iron, or steel.

-LL 4 is the inner guard or disk, which is composed of four separatepieces cut from a disk of a size somewhat smaller in diameter than theouter guard or disk 3 3 by cutting the same curely riveted to the outerguard or disk at 7 7, as shown. The inner edges of said quarters areadapted to slide by each other, said springs automatically allowing formovement to accommodate different sized apertures which it may bedesired to close.

5 5 are four springs, to which the outer and inner guards or disks aresecurely riveted, and being adapted to yield automatically, so as toallow the inner guard or disk to accommodate different-sized aperturesor pipe-holes to be closed and to securely hold the device in place whenput into position. Each of said springs 5 5 has its free end 6 6suitably bent, as shown.

Between the inner guard ordisk 4 4, formed of the parts as shown anddescribed, and the outer guard or disk 3 3, when my device is put inposition in the aperture to be closed, is the air-chamber 9 9, so thatit is impossible for soot, smoke, re, or heat to pass out into the roomwhen the aperture or pipe-hole is closed with my device, even though thesoot in the chimney were to take fire and burn out, as already stated,causing ires through pipe-holes not properly secured.

My device is automatic and self-accommodating and easily put in place,besides being simple and inexpensive in construction.

The outer guard or disk can be made plain or ornamental, as may bedesired.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In an automatic iireproof Hue-stopper, the

combination of the cap tocover a pipe-hole, a disk formed of a pluralityof sectors of a circle with edges overlapping adapted to pass into theopening, and a plurality of springarms connecting all the sectors to thecap, and pressing the edge of said disk against the wall, said armsbeing elongated and bent back to' form additionalsprings to pressagainst the wall and hold the stopper in place, a chamber being formedbetween said disk and said cap, as and for the purpose substantially asset forth and described.

In testimony whereof I aliix my signature roc- Wi tn esses z BEccA'.Fmnvrson, M. VAUBLETINE.

